1. #1

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    Mar 2015
    Location
    Pennsylvania
    Posts
    38

    Power supply or Motherboard

    Booted my PC up I have no monitor(power won't even turn on). No power or hdd ledsi on front panel not working, fans are running, video card running with green light,hdds are spinning.All fans are running.Orange, blue and green leds on MB are all on when power is on. Blue led on when power is off reinstalled all devices
    connectors etch Any Help would be appreciated. Power supply or MB ? Or something else all together ?.


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  2. #2
    Digerati's Avatar
    Join Date
    Aug 2012
    Location
    Nebraska, USA
    Posts
    3,669
    • specs System Specs
      • Manufacturer:
        BrightWorks Systems
      • Model Number:
        BWS-6 E-IV
      • Motherboard:
        Gigabyte GA-Z170-HD3
      • CPU:
        Intel Core i5-6600 Skylake Pushed to 3.9GHz
      • Memory:
        2 X 8GB Corsair Vengeance DDR4 3000
      • Graphics:
        EVGA GeForce GTX 1050TI 04G-P4-6251-KR, 4GB GDDR5
      • Sound Card:
        Integrated
      • Disk Drives:
        Samsung 850 Pro 256GB SSD, 850 EVO 250GB SSD, Blu-ray R/W
      • Power Supply:
        EVGA Supernova 550W Gold
      • Case:
        Fractal Design Define R4 Mid Tower w/Window
      • Cooling:
        2 x 140mm case fans, OEM CPU Cooler
      • Display:
        2 x Samsung S24E650BW 24 inch WS
      • Operating System:
        Windows 10 Pro 64-Bit

    Re: Power supply or Motherboard

    Booted my PC up I have no monitor(power won't even turn on).
    Have you tried another monitor?
    Bill (AFE7Ret)
    Freedom is NOT Free!
    MS MVP 2007 - 2018

    Heat is the bane of all electronics!

  3. #3
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    softwaremaniac's Avatar
    Join Date
    Oct 2014
    Location
    Croatia
    Age
    23
    Posts
    16,705
    • specs System Specs
      • Motherboard:
        ASUS MAXIMUS ROG HERO X
      • CPU:
        Intel Core i7-8700K 3.7GHz
      • Memory:
        Crucial 2x8GB DDR4 2666 MHz
      • Graphics:
        Gigabyte GTX 1080 G1 Gaming 8 GB
      • Sound Card:
        Asus Xonar DSX
      • Hard Drives:
        WD Caviar Black 1TB SATA III 7200rpm, WD Caviar Black 6TB SATA III 7200rpm
      • Disk Drives:
        Samsung 960 Evo 256GB NVME PCIe
      • Power Supply:
        Corsair HX 750W 80+ Platinum
      • Case:
        Fractal Design Define R6
      • Cooling:
        Noctua NH-D14
      • Display:
        Philips Brilliance BDM4065UC 4K 3840x2160
      • Operating System:
        Windows 10 Pro 1803 x64

    Re: Power supply or Motherboard

    Hi! Do you have another monitor to try?

    Have you checked if all the cables are securely in place?

    Have you tried a different wall outlet?


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  4. #4

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    Re: Power supply or Motherboard

    I will not be able to get a monitor until tomorrow . I did reinsert all cables and ram. Also tried a different outlet. About the monitor, could that be the problem for the whole system ?

  5. #5
    Digerati's Avatar
    Join Date
    Aug 2012
    Location
    Nebraska, USA
    Posts
    3,669
    • specs System Specs
      • Manufacturer:
        BrightWorks Systems
      • Model Number:
        BWS-6 E-IV
      • Motherboard:
        Gigabyte GA-Z170-HD3
      • CPU:
        Intel Core i5-6600 Skylake Pushed to 3.9GHz
      • Memory:
        2 X 8GB Corsair Vengeance DDR4 3000
      • Graphics:
        EVGA GeForce GTX 1050TI 04G-P4-6251-KR, 4GB GDDR5
      • Sound Card:
        Integrated
      • Disk Drives:
        Samsung 850 Pro 256GB SSD, 850 EVO 250GB SSD, Blu-ray R/W
      • Power Supply:
        EVGA Supernova 550W Gold
      • Case:
        Fractal Design Define R4 Mid Tower w/Window
      • Cooling:
        2 x 140mm case fans, OEM CPU Cooler
      • Display:
        2 x Samsung S24E650BW 24 inch WS
      • Operating System:
        Windows 10 Pro 64-Bit

    Re: Power supply or Motherboard

    About the monitor, could that be the problem for the whole system ?
    Not sure what you mean by "whole system". You said in your opening post you have lit LEDs and spinning fans. So clearly, the "whole system" is not dead.

    The problem is, because you cannot see what is happening, you don't know if the system is trying to boot, or not. That's why you need to try another monitor to see if you get the same results.

    As for no monitor until tomorrow, note that most TVs made in recent years support computer input too.
    Bill (AFE7Ret)
    Freedom is NOT Free!
    MS MVP 2007 - 2018

    Heat is the bane of all electronics!

  6. #6

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    Location
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    Posts
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    Re: Power supply or Motherboard

    Do you mean take my monitor and plug it in to the TV to see if it works ? Also shouldn't the monitor turn on just plugged in to an outlet?

  7. #7
    Digerati's Avatar
    Join Date
    Aug 2012
    Location
    Nebraska, USA
    Posts
    3,669
    • specs System Specs
      • Manufacturer:
        BrightWorks Systems
      • Model Number:
        BWS-6 E-IV
      • Motherboard:
        Gigabyte GA-Z170-HD3
      • CPU:
        Intel Core i5-6600 Skylake Pushed to 3.9GHz
      • Memory:
        2 X 8GB Corsair Vengeance DDR4 3000
      • Graphics:
        EVGA GeForce GTX 1050TI 04G-P4-6251-KR, 4GB GDDR5
      • Sound Card:
        Integrated
      • Disk Drives:
        Samsung 850 Pro 256GB SSD, 850 EVO 250GB SSD, Blu-ray R/W
      • Power Supply:
        EVGA Supernova 550W Gold
      • Case:
        Fractal Design Define R4 Mid Tower w/Window
      • Cooling:
        2 x 140mm case fans, OEM CPU Cooler
      • Display:
        2 x Samsung S24E650BW 24 inch WS
      • Operating System:
        Windows 10 Pro 64-Bit

    Re: Power supply or Motherboard

    Do you mean take my monitor and plug it in to the TV to see if it works ?
    No. I mean plug your computer into the TV. A TV is just a big monitor with a built-in tuner and speakers. Most monitors accept inputs from several sources, including a cable box, DVD/Blue-ray player, antenna, computer, A/V receiver and more.
    Also shouldn't the monitor turn on just plugged in to an outlet?
    Yes (once you press the power button). But of course you won't see much on the screen, if anything. But you should see a power on light, and normally you might see a "Searching for signal" (or something similar) message on the screen.

    But that does not tell you the monitor is working properly. It needs a signal from the computer for that.
    Bill (AFE7Ret)
    Freedom is NOT Free!
    MS MVP 2007 - 2018

    Heat is the bane of all electronics!

  8. #8

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    Mar 2015
    Location
    Pennsylvania
    Posts
    38

    Re: Power supply or Motherboard

    Tried a different monitor and it is not receiving any signal. Also I would like to say again that the front panel on my tower the power and had leds are not on when the PC is started.

  9. #9

    Join Date
    Mar 2015
    Location
    Pennsylvania
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    Re: Power supply or Motherboard

    Hdd and power leds. Sorry for the spelling error

  10. #10
    Digerati's Avatar
    Join Date
    Aug 2012
    Location
    Nebraska, USA
    Posts
    3,669
    • specs System Specs
      • Manufacturer:
        BrightWorks Systems
      • Model Number:
        BWS-6 E-IV
      • Motherboard:
        Gigabyte GA-Z170-HD3
      • CPU:
        Intel Core i5-6600 Skylake Pushed to 3.9GHz
      • Memory:
        2 X 8GB Corsair Vengeance DDR4 3000
      • Graphics:
        EVGA GeForce GTX 1050TI 04G-P4-6251-KR, 4GB GDDR5
      • Sound Card:
        Integrated
      • Disk Drives:
        Samsung 850 Pro 256GB SSD, 850 EVO 250GB SSD, Blu-ray R/W
      • Power Supply:
        EVGA Supernova 550W Gold
      • Case:
        Fractal Design Define R4 Mid Tower w/Window
      • Cooling:
        2 x 140mm case fans, OEM CPU Cooler
      • Display:
        2 x Samsung S24E650BW 24 inch WS
      • Operating System:
        Windows 10 Pro 64-Bit

    Re: Power supply or Motherboard

    Then for sure, I would try a different PSU to make sure it is not that since everything else inside the computer depends on good, clean power.
    Bill (AFE7Ret)
    Freedom is NOT Free!
    MS MVP 2007 - 2018

    Heat is the bane of all electronics!

  11. #11

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    Location
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    Posts
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    Re: Power supply or Motherboard

    So a weak psi can prevent windows from booting and limiting power to gpu,cpu and other devices. like a printer

  12. #12
    Digerati's Avatar
    Join Date
    Aug 2012
    Location
    Nebraska, USA
    Posts
    3,669
    • specs System Specs
      • Manufacturer:
        BrightWorks Systems
      • Model Number:
        BWS-6 E-IV
      • Motherboard:
        Gigabyte GA-Z170-HD3
      • CPU:
        Intel Core i5-6600 Skylake Pushed to 3.9GHz
      • Memory:
        2 X 8GB Corsair Vengeance DDR4 3000
      • Graphics:
        EVGA GeForce GTX 1050TI 04G-P4-6251-KR, 4GB GDDR5
      • Sound Card:
        Integrated
      • Disk Drives:
        Samsung 850 Pro 256GB SSD, 850 EVO 250GB SSD, Blu-ray R/W
      • Power Supply:
        EVGA Supernova 550W Gold
      • Case:
        Fractal Design Define R4 Mid Tower w/Window
      • Cooling:
        2 x 140mm case fans, OEM CPU Cooler
      • Display:
        2 x Samsung S24E650BW 24 inch WS
      • Operating System:
        Windows 10 Pro 64-Bit

    Re: Power supply or Motherboard

    So a weak psi can prevent windows from booting and limiting power to gpu,cpu and other devices. like a printer
    Not a printer since they have their own power supplies. But yes, a weak PSU can prevent a computer from booting. But a "weak" PSU would likely cause boot problems from day one. So your problem may be a failing PSU.

    Note too that PC power supplies supply 3 different voltages, 12V, 5V and 3.3V, to various points inside the computer. It is not uncommon to lose one of those but not the others. So fans may still spin, for example, but the computer might not boot because other voltages are missing.

    At any rate, again, because EVERYTHING inside the computer depends on good power, you need to either confirm your PSU is failing or has failed, or verify it is working. And for most users, that is best done by swapping in a spare, known good PSU to see if the same problem occurs, or goes away.

    If no spare PSU is available, or you don't feel comfortable digging around inside your computer, most shops will test your PSU for a nominal fee, or even free. Alternatively and though not conclusive, you can also use a PSU Tester. They are useful for detecting PSUs that have already "failed". However, none of these testers test for ripple and other anomalies that affect computer stability. And they only provide a little "dummy load", not a variety of "realistic" loads needed for thorough testing. So while better than nothing, conclusive testing is done by a qualified technician using an oscilloscope or power supply analyzer - sophisticated (and expensive!) electronic test equipment requiring special training to operate, and a basic knowledge of electronics theory to understand the results. This is why swapping in a known good spare works best for most "normal" users.
    Bill (AFE7Ret)
    Freedom is NOT Free!
    MS MVP 2007 - 2018

    Heat is the bane of all electronics!

  13. #13

    Join Date
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    Location
    Pennsylvania
    Posts
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    Re: Power supply or Motherboard

    Thank you. I'll se if I can find someone with a power supply or
    take it to the local repair shop for testing

  14. #14
    Digerati's Avatar
    Join Date
    Aug 2012
    Location
    Nebraska, USA
    Posts
    3,669
    • specs System Specs
      • Manufacturer:
        BrightWorks Systems
      • Model Number:
        BWS-6 E-IV
      • Motherboard:
        Gigabyte GA-Z170-HD3
      • CPU:
        Intel Core i5-6600 Skylake Pushed to 3.9GHz
      • Memory:
        2 X 8GB Corsair Vengeance DDR4 3000
      • Graphics:
        EVGA GeForce GTX 1050TI 04G-P4-6251-KR, 4GB GDDR5
      • Sound Card:
        Integrated
      • Disk Drives:
        Samsung 850 Pro 256GB SSD, 850 EVO 250GB SSD, Blu-ray R/W
      • Power Supply:
        EVGA Supernova 550W Gold
      • Case:
        Fractal Design Define R4 Mid Tower w/Window
      • Cooling:
        2 x 140mm case fans, OEM CPU Cooler
      • Display:
        2 x Samsung S24E650BW 24 inch WS
      • Operating System:
        Windows 10 Pro 64-Bit

    Re: Power supply or Motherboard

    Sounds like a plan. Keep us posted.
    Bill (AFE7Ret)
    Freedom is NOT Free!
    MS MVP 2007 - 2018

    Heat is the bane of all electronics!

  15. #15

    Re: Power supply or Motherboard

    I like to rule out the easy stuff first. I would try a different video card, or the on board video, if it has one

  16. #16
    Digerati's Avatar
    Join Date
    Aug 2012
    Location
    Nebraska, USA
    Posts
    3,669
    • specs System Specs
      • Manufacturer:
        BrightWorks Systems
      • Model Number:
        BWS-6 E-IV
      • Motherboard:
        Gigabyte GA-Z170-HD3
      • CPU:
        Intel Core i5-6600 Skylake Pushed to 3.9GHz
      • Memory:
        2 X 8GB Corsair Vengeance DDR4 3000
      • Graphics:
        EVGA GeForce GTX 1050TI 04G-P4-6251-KR, 4GB GDDR5
      • Sound Card:
        Integrated
      • Disk Drives:
        Samsung 850 Pro 256GB SSD, 850 EVO 250GB SSD, Blu-ray R/W
      • Power Supply:
        EVGA Supernova 550W Gold
      • Case:
        Fractal Design Define R4 Mid Tower w/Window
      • Cooling:
        2 x 140mm case fans, OEM CPU Cooler
      • Display:
        2 x Samsung S24E650BW 24 inch WS
      • Operating System:
        Windows 10 Pro 64-Bit

    Re: Power supply or Motherboard

    I like to rule out the easy stuff first. I would try a different video card, or the on board video, if it has one
    Again, even a different graphics card requires good power. If there is integrated graphics, I'll go along with checking that. Otherwise, I still recommend verifying power is good before swapping out cards.
    Bill (AFE7Ret)
    Freedom is NOT Free!
    MS MVP 2007 - 2018

    Heat is the bane of all electronics!

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